AS/NZS 1125 standard

In surface mining and general underground mining operations excluding coal, heavy mobile equipment such as draglines, electric shovels, and drilling rigs rely on reeling cable systems to maintain continuous power delivery during movement and repositioning. These reeling drum applications subject cables to severe mechanical stresses including crushing forces as cable layers compress against each other during winding operations. The selection between Type 440 and Type 441 cables manufactured to AS/NZS 2802 standards represents a critical engineering decision that directly impacts equipment reliability, operational safety, and maintenance costs. 在不包括煤炭的露天采矿和一般地下采矿作业中,挖掘机、电铲和钻机等重型移动设备依赖卷取电缆系统在移动和重新定位期间保持连续供电。